//框架组建
Ext.user.topmenu = new Ext.user.MyPanelUi();
Ext.user.centermenu = new Ext.user.MyPanelCenterUi();
Ext.user.treemenu = new Ext.user.MyTree();
MyViewportUi1 = Ext.extend(Ext.Viewport, {
    layout: 'border',
	renderTo:Ext.getBody(),
    initComponent: function() {
        this.items = [
            Ext.user.topmenu,
            Ext.user.treemenu ,
            Ext.user.centermenu
        ];
        MyViewportUi1.superclass.initComponent.call(this);
    }
});
